/* * I n t e r n a l D e f i n i t i o n s f o r C P P * * In general, definitions in this file should not be changed. */ #ifndef toupper #define toupper(c) ((c) + ('A' - 'a')) #endif /* no toupper */ #ifndef tolower #define tolower(c) ((c) + ('a' - 'A')) #endif /* no tolower */ #ifndef TRUE #define TRUE 1 #define FALSE 0 #endif #ifndef EOS /* * This is predefined in Decus C */ #define EOS '\0' /* End of string */ #endif #define EOF_CHAR 0 /* Returned by get() on eof */ #define NULLST ((char *) NULL) /* Pointer to nowhere (linted) */ #define DEF_NOARGS (-1) /* #define foo vs #define foo() */ /* * The following may need to change if the host system doesn't use ASCII. */ #define QUOTE_PARM 0x1C /* Magic quoting operator */ #define DEF_MAGIC 0x1D /* Magic for #defines */ #define TOK_SEP 0x1E /* Token concatenation delim. */ #define COM_SEP 0x1F /* Magic comment separator */ /* * Note -- in Ascii, the following will map macro formals onto DEL + the * C1 control character region (decimal 128 .. (128 + PAR_MAC)) which will * be ok as long as PAR_MAC is less than 33). Note that the last PAR_MAC * value is reserved for string substitution. */ #define MAC_PARM 0x7F /* Macro formals start here */ #if PAR_MAC >= 33 assertion fails -- PAR_MAC isn't less than 33 #endif #define LASTPARM (PAR_MAC - 1) /* * Character type codes. */ #define INV 0 /* Invalid, must be zero */ #define OP_EOE INV /* End of expression */ #define DIG 1 /* Digit */ #define LET 2 /* Identifier start */ #define FIRST_BINOP OP_ADD #define OP_ADD 3 #define OP_SUB 4 #define OP_MUL 5 #define OP_DIV 6 #define OP_MOD 7 #define OP_ASL 8 #define OP_ASR 9 #define OP_AND 10 /* &, not && */ #define OP_OR 11 /* |, not || */ #define OP_XOR 12 #define OP_EQ 13 #define OP_NE 14 #define OP_LT 15 #define OP_LE 16 #define OP_GE 17 #define OP_GT 18 #define OP_ANA 19 /* && */ #define OP_ORO 20 /* || */ #define OP_QUE 21 /* ? */ #define OP_COL 22 /* : */ #define OP_CMA 23 /* , (relevant?) */ #define LAST_BINOP OP_CMA /* Last binary operand */ /* * The following are unary. */ #define FIRST_UNOP OP_PLU /* First Unary operand */ #define OP_PLU 24 /* + (draft ANSI standard) */ #define OP_NEG 25 /* - */ #define OP_COM 26 /* ~ */ #define OP_NOT 27 /* ! */ #define LAST_UNOP OP_NOT #define OP_LPA 28 /* ( */ #define OP_RPA 29 /* ) */ #define OP_END 30 /* End of expression marker */ #define OP_MAX (OP_END + 1) /* Number of operators */ #define OP_FAIL (OP_END + 1) /* For error returns */ /* * The following are for lexical scanning only. */ #define QUO 65 /* Both flavors of quotation */ #define DOT 66 /* . might start a number */ #define SPA 67 /* Space and tab */ #define BSH 68 /* Just a backslash */ #define END 69 /* EOF */ /* * These bits are set in ifstack[] */ #define WAS_COMPILING 1 /* TRUE if compile set at entry */ #define ELSE_SEEN 2 /* TRUE when #else processed */ #define TRUE_SEEN 4 /* TRUE when #if TRUE processed */ /* * Define bits for the basic types and their adjectives */ #define T_CHAR 1 #define T_INT 2 #define T_FLOAT 4 #define T_DOUBLE 8 #define T_SHORT 16 #define T_LONG 32 #define T_SIGNED 64 #define T_UNSIGNED 128 #define T_PTR 256 /* Pointer */ #define T_FPTR 512 /* Pointer to functions */ /* * The DEFBUF structure stores information about #defined * macros. Note that the defbuf->repl information is always * in malloc storage. */ typedef struct defbuf { struct defbuf *link; /* Next define in chain */ char *repl; /* -> replacement */ int hash; /* Symbol table hash */ int nargs; /* For define(args) */ char name[1]; /* #define name */ } DEFBUF; /* * The FILEINFO structure stores information about open files * and macros being expanded. */ typedef struct fileinfo { char *bptr; /* Buffer pointer */ int line; /* for include or macro */ FILE *fp; /* File if non-null */ struct fileinfo *parent; /* Link to includer */ char *filename; /* File/macro name */ char *progname; /* From #line statement */ unsigned int unrecur; /* For macro recursion */ char buffer[1]; /* current input line */ } FILEINFO; /* * The SIZES structure is used to store the values for #if sizeof */ typedef struct sizes { short bits; /* If this bit is set, */ short size; /* this is the datum size value */ short psize; /* this is the pointer size */ } SIZES; /* * nomacarg is a built-in #define on Decus C. */ #ifdef nomacarg #define cput output /* cput concatenates tokens */ #else #if COMMENT_INVISIBLE #define cput(c) { if (c != TOK_SEP && c != COM_SEP) putchar(c); } #else #define cput(c) { if (c != TOK_SEP) putchar(c); } #endif #endif #ifndef nomacarg #define streq(s1, s2) (strcmp(s1, s2) == 0) #endif /* * Error codes. VMS uses system definitions. * Decus C codes are defined in stdio.h. * Others are cooked to order. */ #if HOST == SYS_VMS #include #include #define IO_NORMAL (SS$_NORMAL | STS$M_INHIB_MSG) #define IO_ERROR SS$_ABORT #endif /* * Note: IO_NORMAL and IO_ERROR are defined in the Decus C stdio.h file */ #ifndef IO_NORMAL #define IO_NORMAL 0 #endif #ifndef IO_ERROR #define IO_ERROR 1 #endif /* * Externs */ extern int line; /* Current line number */ extern int wrongline; /* Force #line to cc pass 1 */ extern char type[]; /* Character classifier */ extern char *tokenbuf; /* Current input token */ extern int tokenbsize; /* Current size allocated in tokenbuf (not counting 1 byte for zero) */ extern int instring; /* TRUE if scanning string */ extern int inmacro; /* TRUE if scanning #define */ extern int errors; /* Error counter */ extern int recursion; /* Macro depth counter */ extern char ifstack[BLK_NEST]; /* #if information */ #define compiling ifstack[0] extern char *ifptr; /* -> current ifstack item */ extern char *incdir[NINCLUDE]; /* -i directories */ extern char **incend; /* -> active end of incdir */ extern int cflag; /* -C option (keep comments) */ extern int eflag; /* -E option (ignore errors) */ extern int nflag; /* -N option (no pre-defines) */ extern int wflag; /* -W write #defines at end */ extern int rec_recover; /* unwind recursive macros */ extern char *preset[]; /* Standard predefined symbols */ extern char *magic[]; /* Magic predefined symbols */ extern FILEINFO *infile; /* Current input file */ extern char work[NWORK + 1]; /* #define scratch */ extern char *workp; /* Free space in work */ #if DEBUG extern int debug; /* Debug level */ #endif extern int keepcomments; /* Don't remove comments if set */ extern SIZES size_table[]; /* For #if sizeof sizes */ extern char *getmem(); /* Get memory or die. */ #ifndef amiga /* Should track usage in cpp6.c */ extern char *incmem(); /* Increase size of block or die. */ #endif extern DEFBUF *lookid(); /* Look for a #define'd thing */ extern DEFBUF *defendel(); /* Symbol table enter/delete */ extern char *savestring(); /* Stuff string in malloc mem. */ extern char *strcpy(); extern char *strncpy(); extern char *strcat(); extern char *strrchr(); extern char *strchr(); extern long time(); extern char *sprintf(); /* Lint needs this */ extern void free (); extern void exit ();